The house is a normal-sized house, but once you step foot in the door, you are confronted with “The Dome.” Perfectly round, this room is one continuous curved wall of books. A copper dome sits on top with four stained glass windows fitted tight to allow for natural light to stream in. The four stained glass windows offer portraits of the four greatest mathematicians in history: Newton, Euler, Gauss, and Archimedes, though they are ordered alphabetically from left to right on the dome.